Create returns a new IndexWriter that will write the index to file.

File returns the name of the index file to use.

Merge creates a new index in the file dst that corresponds to merging the two indices src1 and src2.

RegexpQuery returns a Query for the given regexp.

Everything matches.

All in Sub and Trigram must match.

Nothing matches.

At least one in Sub or Trigram must match.

An Index implements read-only access to a trigram index.

An IndexWriter creates an on-disk index corresponding to a set of files.

A Query is a matching machine, like a regular expression, that matches some text and not other text.